body {
    max-width: 750px;
    min-width: 320px;
    width: 10rem;
    margin: 0 auto;
    line-height: 1.5;
    font-family: arial, helvetica;
    background: #f2f2f2;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    font-size: .333rem
}

@media screen and ( min-width:750px) {
    html {
        font-size: 75px !important;
    }
}

@media screen and ( max-width:340px) {
    html {
        font-size: 34px !important;
    }
}

.searchnav {
    display: flex;
    max-width: 750px;
    min-width: 320px;
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    width: 10rem;
    height: 1.333rem;
    background-color: aqua;
}

.classify {
    background: url(../img/classify.png) no-repeat;
    width: .533rem;
    height: .933rem;
}

.login {
    height: .933rem;
    width: .933rem;
    line-height: .933rem;
    text-align: center;
}

.search {
    flex: 1;
}

.search input {
    margin: .133rem 0px;
    height: .8rem;
    width: 100%;
    border-radius: .4rem;
    /* font-size: .5rem; */
    color: #ccc;
    padding-left: .267rem;
}